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ck: Use atomic built-ins

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Update #3472.
This commit is contained in:
Sebastian Huber 2018-09-10 15:06:07 +02:00
parent bcdce02d9b
commit baf1ca7629
1 changed files with 13 additions and 10 deletions
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23
freebsd/sys/contrib/ck/include/gcc/ck_pr.h
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@ -126,7 +126,7 @@ ck_pr_stall(void)
CK_CC_INLINE static void \ CK_CC_INLINE static void \
ck_pr_fence_strict_##T(void) \ ck_pr_fence_strict_##T(void) \
{ \ { \
__sync_synchronize(); \ __atomic_thread_fence(__ATOMIC_SEQ_CST);\
} }
CK_PR_FENCE(atomic) CK_PR_FENCE(atomic)
@ -158,7 +158,8 @@ CK_PR_FENCE(unlock)
ck_pr_cas_##S(M *target, T compare, T set) \ ck_pr_cas_##S(M *target, T compare, T set) \
{ \ { \
bool z; \ bool z; \
z = __sync_bool_compare_and_swap((T *)target, compare, set); \ z = __atomic_compare_exchange_n((T *)target, &compare, set, \
false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST); \
return z; \ return z; \
} }
@ -183,18 +184,18 @@ CK_PR_CAS_S(8, uint8_t)
CK_CC_INLINE static bool CK_CC_INLINE static bool
ck_pr_cas_ptr_value(void *target, void *compare, void *set, void *v) ck_pr_cas_ptr_value(void *target, void *compare, void *set, void *v)
{ {
set = __sync_val_compare_and_swap((void **)target, compare, set); *(void **)v = compare;
*(void **)v = set; return __atomic_compare_exchange_n((void **)target, v, set, false,
return (set == compare); __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);
} }
#define CK_PR_CAS_O(S, T) \ #define CK_PR_CAS_O(S, T) \
CK_CC_INLINE static bool \ CK_CC_INLINE static bool \
ck_pr_cas_##S##_value(T *target, T compare, T set, T *v) \ ck_pr_cas_##S##_value(T *target, T compare, T set, T *v) \
{ \ { \
set = __sync_val_compare_and_swap(target, compare, set);\ *v = compare; \
*v = set; \ return __atomic_compare_exchange_n(target, v, set, \
return (set == compare); \ false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST); \
} }
CK_PR_CAS_O(char, char) CK_PR_CAS_O(char, char)
@ -214,7 +215,8 @@ CK_PR_CAS_O(8, uint8_t)
CK_CC_INLINE static T \ CK_CC_INLINE static T \
ck_pr_faa_##S(M *target, T d) \ ck_pr_faa_##S(M *target, T d) \
{ \ { \
d = __sync_fetch_and_add((T *)target, d); \ d = __atomic_fetch_add((T *)target, d, \
__ATOMIC_SEQ_CST); \
return (d); \ return (d); \
} }
@ -240,7 +242,8 @@ CK_PR_FAA_S(8, uint8_t)
CK_CC_INLINE static void \ CK_CC_INLINE static void \
ck_pr_##K##_##S(M *target, T d) \ ck_pr_##K##_##S(M *target, T d) \
{ \ { \
d = __sync_fetch_and_##K((T *)target, d); \ d = __atomic_fetch_##K((T *)target, d, \
__ATOMIC_SEQ_CST); \
return; \ return; \
} }